GE PowerVac 5kV VL Instructions Manual page 43

ITEM BREAKER
Contact Open
Wipe Closed
Contact Open
Gap Closed
Contact
Erosion
Trip Closed
Coil
Close Open
Coil
Control Open
Switches
Timing
Contact
Speeds
Motor
Cutoff
Switch
ITEM BREAKER
Contact Closed
Wipe
Contact Open
Gap
Contact
Erosion
Trip Closed
Coil
Close Open
Coil
Control Open
Switches
Motor
Cutoff
Switch
Courtesy of NationalSwitchgear.com
Chapter 11. Mechanical Adjustments
TABLE #1 MEASUREMENTS
CLOSING OPENING
SPRING SPRING
Charged Discharged
Charged Charged
Charged Discharged
Charged Charged
Discharged Charged
Charged Discharged
Discharged Discharged
TABLE #2 ADJUSTMENTS
CLOSING OPENING
SPRING SPRING
Charged Charged
Charged Discharged
Discharged Charged
Charged Discharged
Discharged Discharged
43
PowerVac 5kV Vertical Lift
®
MEASUREMENT
Measure the stem or between
spring block and nut
Measure the travel of the
operating rod insulator
Measure distance from bottom of
insulated operating rod to bottom
of stainless steel interrupter
support
Measure between plunger
button and coil housing
Measure under the collar
to the end of plunger
Depends on switch type
See Chapter 8
See Chapter 10-10
See Figure 26
See Figure 47
MEASUREMENT
Adjust operating rod to obtain
required dimensions
Use buffer shims to advance
or retard gap adjustment
Replace interrupter when
wear exceeds 0.125"
Turn adjusting nut to obtain
required dimension
Loosen set screw and
move collar up or down
Adjust link
See Figure 47